Feb 16, 2017 · His open source interests include all types of virtual private networking, including IPSec, PPTP, and, of course, OpenVPN. In 2004, he discovered OpenVPN and has been using it ever since. His first book was OpenVPN 2 Cookbook by Packt Publishing in 2011, followed by Mastering OpenVPN, also by Packt Publishing, in 2015.

External authentication scripts in OpenVPN the right way May 22, 2017 OpenVPN Cookbook - Second Edition Feb 16, 2017 Openvpn – MULTI: bad source address from client – solution

Openvpn command line arguments on Ubuntu: Naturally, one can start openvpn from a command line with any avalable legal options. But, on an Ubuntu machine, if one wants to start openvpn with the same command line arguments after a reboot, they should consider editing the file /etc/default/openvpn.

See man # page for more info on learn-address script. ;learn-address ./script # If enabled, this directive will configure # all clients to redirect their default # network gateway through the VPN, causing # all IP traffic such as web browsing and # and DNS lookups to go through the VPN # (The OpenVPN server machine may need to NAT # or bridge

Mar 03, 2006

The third option is to just run two openvpn instances and assign separate client IP space to both (for example, one /25 from the same /24 subnet each). This avoids bridging and the need for a learn-address script. EDIT: since I needed such a learn-address script myself, I wrote one. I place it in the public domain. Limit DHCP IP range for OpenVPN clients (GUI Only